JPS5612853A - Detector of rotating position and speed for rotor - Google Patents

Detector of rotating position and speed for rotor

Info

Publication number
JPS5612853A
JPS5612853A JP8762979A JP8762979A JPS5612853A JP S5612853 A JPS5612853 A JP S5612853A JP 8762979 A JP8762979 A JP 8762979A JP 8762979 A JP8762979 A JP 8762979A JP S5612853 A JPS5612853 A JP S5612853A
Authority
JP
Japan
Prior art keywords
rotor
size
detector
elements
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8762979A
Other languages
Japanese (ja)
Inventor
Hiroshi Tottori
Tatsuo Ozeki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8762979A priority Critical patent/JPS5612853A/en
Publication of JPS5612853A publication Critical patent/JPS5612853A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)

Abstract

PURPOSE:To contrive the reduction in size of the rotor and the improvement in the accuracy thereof by disposing and magnetizing the position and speed detecting patterns at a magnet disk and integrally mounting a plurality of magnetic reluctance effect elements on one substrate for detecting them. CONSTITUTION:The magnet disk 20 is magnetized in dense north and south pole patterns in segments corresponding to the poles of a rotor on the inner periphery. Magnetic reluctance effect elements 22, 23 such as, for example, four elements are carried on the same substrate 21. Since the elements 22, 23 directly exert in the disposition and size accuarcy the detecting accracy of the detector, they are integrally formed on one substrate 21 by using a photomechanical technology having excellent matching size accuracy. In this manner it can contrive the reduction in size of the rotor and can obtain a detector having high accuracy.
JP8762979A 1979-07-10 1979-07-10 Detector of rotating position and speed for rotor Pending JPS5612853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8762979A JPS5612853A (en) 1979-07-10 1979-07-10 Detector of rotating position and speed for rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8762979A JPS5612853A (en) 1979-07-10 1979-07-10 Detector of rotating position and speed for rotor

Publications (1)

Publication Number Publication Date
JPS5612853A true JPS5612853A (en) 1981-02-07

Family

ID=13920261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8762979A Pending JPS5612853A (en) 1979-07-10 1979-07-10 Detector of rotating position and speed for rotor

Country Status (1)

Country Link
JP (1) JPS5612853A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076519A2 (en) * 1981-10-06 1983-04-13 Hitachi, Ltd. Encoder with position detecting device
JPS59111475U (en) * 1983-01-19 1984-07-27 株式会社日立製作所 Motor with rotating magnetic sensor
JPS61138377U (en) * 1985-02-14 1986-08-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076519A2 (en) * 1981-10-06 1983-04-13 Hitachi, Ltd. Encoder with position detecting device
EP0076519A3 (en) * 1981-10-06 1983-07-06 Hitachi, Ltd. Encoder with position detecting device
JPS59111475U (en) * 1983-01-19 1984-07-27 株式会社日立製作所 Motor with rotating magnetic sensor
JPS61138377U (en) * 1985-02-14 1986-08-27

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